diff --git a/nwcp.py b/nwcp.py
index 22358dc..4a5023a 100644
--- a/nwcp.py
+++ b/nwcp.py
@@ -49,7 +49,8 @@ class MainSubscription:
 
     def gc(self, expire: Optional[int] = None):
         """
-        Garbage collection, remove all the events that have a response older than expire seconds (defaults to 1 hour if 0 or None)
+        Garbage collection, remove all the events that have a response older
+        than expire seconds (defaults to 1 hour if 0 or None)
         """
         expire = expire or 1 * 60 * 60
         now = int(time.time())
diff --git a/paranoia.py b/paranoia.py
index 815ae4e..5ebca7c 100644
--- a/paranoia.py
+++ b/paranoia.py
@@ -70,11 +70,16 @@ def assert_valid_sha256(v: str):
 # Check if value is an hash of an unexpected input (eg. empty strings, booleans etc)
 def assert_no_badhash(v: str):
     bad_hashes = [
-        "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",  # empty string
-        "36a9e7f1c95b82ffb99743e0c5c4ce95d83c9a430aac59f84ef3cbfab6145068",  # 1 space string
-        "c1c4b7fbd3e146bb14ec6258e5231c1ec703590721ff1e321b179a62b5857c9c",  # None
-        "cdca0b9bb2325fc8ed7eba7734a3a1f876d919221399b6587ae7d26305adee9d",  # True
-        "f9e08f8b038b1b401497f17da3adc120667ac742bf035657869a6ca1cd180e69",  # False
+        # empty string
+        "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+        # 1 space string
+        "36a9e7f1c95b82ffb99743e0c5c4ce95d83c9a430aac59f84ef3cbfab6145068",
+        # None
+        "c1c4b7fbd3e146bb14ec6258e5231c1ec703590721ff1e321b179a62b5857c9c",
+        # True
+        "cdca0b9bb2325fc8ed7eba7734a3a1f876d919221399b6587ae7d26305adee9d",
+        # False
+        "f9e08f8b038b1b401497f17da3adc120667ac742bf035657869a6ca1cd180e69",
     ]
     if v in bad_hashes:
         panic("bad hash detected")
@@ -146,8 +151,8 @@ def assert_valid_json(v: str):
         import json
 
         json.loads(v)
-    except:
-        panic("string is not valid json")
+    except Exception as e:
+        panic("string is not valid json " + str(e))
 
 
 # Check if string is a valid bolt11 invoice